Introducing Cisco Unified Computing System by Stuart Fordham

Author:Stuart Fordham
Language: eng
Format: epub
ISBN: 9781484289860
Publisher: Apress

Creating VLANs

UCSPE has already created some VLANs for us, but we will create some more, by going to LAN ➤ LAN Cloud ➤ VLANs. We can create VLANs on a per-Fabric basis, or on both fabrics at the same time. Click “All” and then click “Add.. Our first VLAN will be called “DB,” and will have a VLAN ID of 10 (Figure 4-4).

Figure 4-4Creating the DB VLAN

As the GUI shows, we can use this to create ranges of VLANs on both fabrics (Common/Global), individual fabrics, or we can configure the fabrics differently. The latter option allows us to specify different VLAN IDs for each fabric (though the name we give this particular VLAN will be the same across both fabrics, just the VLAN ID will be different).

The sharing type is for setting up private VLANs (PVLAN) and allows us, if we should so desire, to isolate ports. We create a primary VLAN and one (or more) secondary VLANs, which can either be an isolated or a community VLAN. Isolated ports can only communicate with the associated port in the primary VLAN, not even with each other. Community ports – communicate with each other and with promiscuous ports. For both Isolated and Community VLANs, we must create a primary VLAN first.

Repeat the process, creating a VLAN 13, which is our DMZ. Our VLANs should look like Figure 4-5.

Figure 4-5Our VLANs

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